Arbitrary Code Injection Affecting n8n-editor-ui package, versions <1.123.35>=2.0.0 <2.33.2>=2.34.0 <2.34.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Sept 2026
- disclosed20 Aug 2026
- creditMasofgon
Introduced: 20 Aug 2026
CVE-2026-77075 (opens in a new tab)How to fix?
Upgrade n8n-editor-ui to version 1.123.35, 2.33.2, 2.34.1 or higher.
Overview
n8n-editor-ui is a Workflow Editor UI for n8n
Affected versions of this package are vulnerable to Arbitrary Code Injection in the editor's resource locator link preview rendering, which inserts stored field values into URL templates without sanitizing them, so expression syntax held in a field is evaluated rather than displayed. A user with member access can execute JavaScript in another user's editor session, acting with that user's session and workflow permissions, by storing expression syntax in a resource locator field of a node that the other user later opens. This requires an account able to write to the field, either directly or by placing the node into a workflow the target imports or has shared with them, and the code runs only when the target opens the affected node.